2nd International Conference on Emerging Trends in Engineering and Technology, ICETET 2009; Nagpur; 16 December 2009 through 18 December 2009; Category number E3884; Code 79542; Article number 5395007, Pages 1184-1188

Abstract:

For high data rate ultra wideband communication
system, performance comparison of Rake, MMSE and Rake-MMSE receivers is attempted in this paper. The effect of the number of Rake fingers and equalizer taps on the error performance by combating ISI are the major focus of our
research. The bit error rate performances are investigated using semi analytical approach and Monte-Carlo simulation on IEEE 802.15.3a UWB channel models. Simulation results show that the
bit error rate probability of rake-mmse receiver is better than individual Rake and MMSE receiver. The simulation results are illustrated using non-line of sight indoor wireless channel model
(CM3 and CM4). It was observed that RAKE-MMSE receiver structure gives superior performance in CM3 channel model with small delay spread compared to CM4 channel model.